<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <div id="app">
      <div>{{ a + b }}</div>
      <div title="{{ msg }}">{{ a === 1 ? '等于1': '不等于1' }}</div>
      <div>{{ c }}</div>
      <div>{{ msg.toUpperCase() }}</div>
      <div>{{ obj.name }}</div>
    </div>

    <script src="./vue.js"></script>
    <script>
      new Vue({
        el: '#app',
        data: {
          a: 1,
          b: 2,
          msg: 'hello',
          obj: {
            name: '张三',
          },
        },
      });
    </script>
  </body>
</html>
